package com.basicsys.modules.util;

import java.text.ParseException;
import java.text.SimpleDateFormat;

public class TimeDifference {
	public static String dateDiff(String startTime, String endTime, String format) {
		//按照传入的格式生成一个simpledateformate对象
		SimpleDateFormat sd = new SimpleDateFormat(format);
		long nd = 1000*24*60*60;//一天的毫秒数
		long nh = 1000*60*60;//一小时的毫秒数
		long nm = 1000*60;//一分钟的毫秒数
		long ns = 1000;//一秒钟的毫秒数long diff;try {
		//获得两个时间的毫秒时间差异
		long diff;
		long day = 0;
		long hour = 0;
		long min = 0;
		long sec = 0;
		
		try {
			diff = sd.parse(endTime).getTime() - sd.parse(startTime).getTime();
			 day = diff/nd;//计算差多少天
			 hour = diff%nd/nh;//计算差多少小时
			 min = diff%nd%nh/nm;//计算差多少分钟
			 sec = diff%nd%nh%nm/ns;//计算差多少秒//输出结果
		} catch (ParseException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return "历时"+day+"天"+hour+"小时"+min+"分"+sec+"秒。";
}
}
